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Electron-rich Anthracene Semiconductors Containing Triarylamine for Solution-Processed Small-Molecule Organic Solar Cells

Electron-rich Anthracene Semiconductors Containing Triarylamine for Solution-Processed Small-Molecule Organic Solar Cells

Hyeju Choi, Haye Min Ko, Nara Cho, Kihyung Song, Jae Kwan Lee, Jaejung Ko

ChemSusChem. 2012 Oct;5(10):2045-52.

PMID: 22887969

Abstract:

New electron-rich anthracene derivatives containing triarylamine hole stabilizers, 2,6-bis[5,5'-bis(N,N'-diphenylaniline)-2,2'-bithiophen-5-yl]-9,10-bis-[(triisopropylsilyl)ethynyl]anthracene (TIPSAntBT-TPA) and 2,6-bis(5,5'-bis{4-[bis(9,9-dimethyl-9H-fluoren-2-yl)amino]phenyl}-2,2'-bithiophen-5-yl)-9,10-bis-[(triisopropylsilyl)ethynyl]anthracene (TIPSAntBT-bisDMFA), linked with π-conjugated bithiophene bridges, were synthesized and their photovoltaic characteristics were investigated in solution-processed small-molecule organic solar cells (SMOSCs). These new materials exhibited superior intramolecular charge transfer from triarylamine to anthracene, leading to a more electron-rich anthracene core that facilitated electron transfer into phenyl-C(61)-butyric acid methyl ester. Compared with TIPSAntBT and triarylamine, these materials show a threefold improvement in hole-transporting properties and better photovoltaic performance in solution-processed SMOSCs, with the best power conversion efficiency being 2.96 % at a high open-circuit voltage of 0.85 V.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP862667069	9,10-Bis[(triisopropylsilyl)ethynyl]anthracene		862667-06-9	Price

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